11 results about "Gaseous Mediators" patented technology

The present invention relates to an injector (1) for injecting a gaseous medium, in particular a gaseous fuel, preferably hydrogen, into a combustion chamber (20) of an internal combustion engine. The injector (1) comprises, among other things, an axially movable valve closing element (5) for opening and closing at least one opening on a sealing seat (7), an actuator (21) for actuating the valve closing element (5), and a flow control geometry (10) downstream of the sealing seat (7), wherein the flow control geometry (10) is designed such that it is formed downstream of the sealing seat (7) in an attachment body (8), wherein the attachment body (8) has a hollow cylindrical section in the area of ​​the sealing seat (7), to which an outflow area (16) with at least one outflow opening (17) having an inner contour (9) is connected, which opens into an end side (25) facing the combustion chamber (20).According to the invention, the outflow region (16) downstream of the sealing seat (7) has a trough-like section (22) to which at least one outflow opening (17) is connected downstream, wherein the trough-like section (22) has a volume V1 and the outflow opening (17) has a volume V2, or, in the case of several successive opening sections in the flow direction with different orientations, the outflow opening (17) has several volumes V2, V3, and for the volumes V1 > V2 and V1 > V3, wherein the axial extent of the at least one outflow opening (17) is at least one third of the total axial extent of the outflow region (16) between the sealing seat (7) and the end face (25).

The present invention relates to an injector (1) for injecting a gaseous medium, in particular a gaseous fuel, preferably hydrogen, into a combustion chamber (20) of an internal combustion engine. The injector (1) comprises, inter alia, an axially movable valve closing element (5) for releasing and closing at least one opening on a sealing seat (7), an actuator (21) for actuating the valve closing element (5), and a flow-influencing geometry (10) which is arranged downstream of the sealing seat (7) in terms of flow, wherein the flow-influencing geometry (10) is designed in such a way that it is formed in an attachment body (8) downstream of the sealing seat (7), wherein the attachment body (8) has a hollow cylindrical section in the region of the sealing seat (7), which is adjoined by an outflow region (16) having at least one outflow opening (17) having an inner contour (9), which outflow opening opens into an end side (25) facing the combustion chamber (20). According to the invention, the outflow region (16) has, downstream of the sealing seat (7), a trough-like section (22) which is adjoined, downstream, by at least one outflow opening (17), wherein the trough-like section (22) has a volume V1 and the outflow opening (17) has a volume V2 or, in the case of a plurality of opening sections which follow one another in the flow direction and have different orientations, the outflow opening (17) has a plurality of volumes V2, V3, and the following applies for the volumes: V1 > V2 and V1 > V3, wherein the axial extension region of the at least one outflow opening (17) is at least one third of the entire axial extension of the outflow region (16) between the sealing seat (7) and the end side (25).

The invention relates to an injector for blowing gaseous media, in particular gaseous fuel, preferably hydrogen, into a combustion chamber of an internal combustion engine, comprising an axially movable valve closure element for opening and closing at least one opening on a sealing seat, an actuator for actuating the valve closure element, and a flow-influencing geometry arranged fluid-technically downstream of the sealing seat, which is formed in a sleeve downstream of the sealing seat, the sleeve having a hollow-cylindrical section in the region of the sealing seat, a flow-out region with at least one flow-out opening being adjoined to the hollow-cylindrical section, the flow-out opening having an inner contour, the flow-out opening merging into an outer contour of the sleeve, in particular on the end facing the combustion chamber. Here, the flow-out region has a recessed section downstream of the sealing seat, at least two flow-out openings being adjoined downstream of this section, the material region between the at least two flow-out openings serving as a beam splitter and assuming the beam shaping of the gas flow path in the flow-out openings.

The present invention relates to an injector (1) for injecting a gaseous medium, in particular a gaseous fuel, preferably hydrogen, into a combustion chamber (20) of an internal combustion engine. The injector (1) comprises, inter alia, an axially movable valve closing element (5) for opening and closing at least one opening on a sealing seat (7), an actuator (21) for actuating the valve closing element (5), and a flow-control geometry (10) located downstream of the sealing seat (7).According to the invention, the flow control geometry (10) is integrated in a multi-part attachment body (8), wherein the attachment body (8) comprises a cap-like base body (23) which can be attached to a nozzle body (2) of the injector (1), and the base body (23) has a receiving opening (25) into which an insert part (24) can be inserted and attached, wherein the insert part (24) is pressed into and / or welded firmly into the base body (23) and has at least one outlet bore (31).

The invention relates to an injector for blowing gaseous media, in particular gaseous fuel, preferably hydrogen, into a combustion chamber of an internal combustion engine, comprising an axially movable valve closure element for opening and closing at least one opening on a sealing seat, an actuator for actuating the valve closure element, and a flow-influencing geometry arranged fluid-technically downstream of the sealing seat, which is formed in a sleeve downstream of the sealing seat, the sleeve having a hollow-cylindrical section in the region of the sealing seat, a flow-out region with at least one flow-out opening being adjoined to the hollow-cylindrical section, the flow-out opening having an inner contour, the flow-out opening merging into an outer contour of the sleeve, in particular on the end facing the combustion chamber. Here, the flow-out region has a recessed section downstream of the sealing seat, at least two flow-out openings being adjoined downstream of this section, an insert between the at least two flow-out openings serving as a beam splitter and assuming the beam shaping of the gas flow path in the flow-out openings.

The present invention relates to an injector (1) for injecting a gaseous medium, in particular a gaseous fuel, preferably hydrogen, into a combustion chamber (20) of an internal combustion engine. The injector (1) comprises, among other things, an axially movable valve closing element (5) for opening and closing at least one opening on a sealing seat (7), an actuator (21) for actuating the valve closing element (5), and a flow control geometry (10) downstream of the sealing seat (7), wherein the flow control geometry (10) is designed such that it is formed downstream of the sealing seat (7) in an attachment body (8), wherein the attachment body (8) has a hollow cylindrical section in the area of ​​the sealing seat (7), to which an outflow area (16) with at least two outflow openings (17) having an inner contour (9) is connected, which open into an end side (25) facing the combustion chamber (20).According to the invention, the outflow area (16) downstream of the sealing seat (7) has a trough-like section (22) to which the at least two outflow openings (17) are connected downstream, wherein an insert part (30) between the at least two outflow openings (17) acts as a jet splitter and performs jet shaping of the individual gas flow paths (4) in the outflow openings (17).

The application discloses a heat exchange system applied to molten salt energy storage heating and an operation method thereof, and particularly relates to the field of molten salt energy storage heating, and comprises the following steps: S1, fault diagnosis is conducted on each device of the system; S2, high-temperature loop starting is completed through heat medium loop starting, circulating pump starting, flow regulation and buffer tank pressure correction; S3, the molten salt loop is started and temperature control is conducted, the valve opening degree is adjusted based on a formula to stabilize the flow of the high-temperature loop, the total flow of the circulating pump is controlled synchronously, and the stable conditions of flow, molten salt outlet temperature and pump pressure are met, so that it is determined that the loop starting is completed; the intermediate medium in the heat exchange system is liquid, and the heat exchange system is driven by a circulating pump, so that the operation reliability and economy are higher than those of gaseous medium; the heat exchange system can be applied to heat exchange with a temperature difference greater than 500 DEG C, and can guarantee the thermal stress safety of the heat exchanger and the medium safety; and the application reduces the investment cost of the pump by reducing the design temperature of the circulating pump.

The present invention relates to an injector (1) for injecting a gaseous medium, in particular a gaseous fuel, preferably hydrogen, into a combustion chamber (20) of an internal combustion engine. The injector (1) in this case, in particular, has an axially movable valve closing member (5) for opening and closing at least one opening in a seal seat (7), an actuator (21) for operating the valve closing member (5), and a flow-influencing geometry (10) located downstream of the seal seat (7) in a flow-technically manner. According to the present invention, the flow-influencing geometry (10) is the needle stroke (I h When ) is at its maximum, the following relationship holds: 5 × I h ≥s ≥ 1.5 × I h The following holds true, in which case (s) is the distance between the radially outer contour of the valve closing member (5) in the downstream edge region of the valve closing member and the annular line at the tapered portion (12) in the flow direction of the flow-influencing geometry (10) located below it in the projection view in the axial direction, thereby generating a flow with virtually no loss downstream of the valve closing member (5).

Systems, devices and methods are provided for separating and / or isolating individual nanoparticles from groups or clusters of nanofibers within a gaseous medium. The system comprises a housing configured to contain the groups of nanofibers, and a pump coupled to the housing. The system further includes one or more passages coupled to the pump and a gaseous medium within the passages. The pump is configured to propel the nanofibers through, or with, the gaseous medium against one or more surface(s) within the passages at a sufficient velocity and / or momentum to open up or separate, the groups of nanofibers into individual nanoparticles. Isolating individual nanoparticles in a gaseous medium and then dispersing them into a substrate or a fluid stream to form a product allows the nanoparticles to be distributed more uniformly and "in depth" throughout the product.

This invention discloses an overflow-dissolution cycle heat engine. The heat engine includes a heat exchange chamber, a turbine fan, and a dissolution chamber. There is bidirectional liquid flow between the heat exchange chamber and the dissolution chamber, and unidirectional gas flow between the turbine fan and both the heat exchange chamber and the dissolution chamber. The heat engine includes a gaseous medium and a liquid medium, with the gaseous medium having a certain solubility in the liquid medium. This invention utilizes the characteristic that the solubility of a gas in a liquid changes with temperature. Through the overflow and dissolution process of the medium in the heat exchange chamber and the dissolution chamber, and the driving force of the turbine fan by the gaseous medium, the conversion of thermal energy into mechanical energy is achieved. It has advantages such as low manufacturing cost, wide applicability, and medium saving.

The present invention relates to an injector (1) for injecting a gaseous medium, in particular a gaseous fuel, preferably hydrogen, into a combustion chamber (20) of an internal combustion engine. The injector (1) comprises, inter alia, an axially movable valve closing element (5) for opening and closing at least one opening on a sealing seat (7), an actuator (21) for actuating the valve closing element (5), and a flow-control geometry (10) located downstream of the sealing seat (7).According to the invention, the flow control geometry (10) is designed such that it is formed downstream of the sealing seat (7) in an attachment body (8), wherein the attachment body (8) has a hollow cylindrical section in the region of the sealing seat (7), to which an outflow area (16) with at least one outflow opening (17) having an inner contour (9) is connected, which opens into an end side (25) facing the combustion chamber (20), wherein the outflow area (16) has a trough-like section (22) downstream of the sealing seat (7), which transitions downstream into a rounded section (24) that represents a concavely curved reduction in diameter, before the at least one outflow opening (17) is connected.